Full-automatic pallet truck and using method thereof

Abstract

The invention relates to the technical field of tray carrying, in particular to a full-automatic tray carrying vehicle and a using method thereof.The full-automatic tray carrying vehicle comprises a vehicle body and two forks arranged on the vehicle body in a lifting mode, and lifting mechanisms are arranged between the side faces, away from each other, of the two forks and the two side faces of the vehicle body correspondingly. Through mutual cooperation of a fixing frame, a long cylinder, a connecting column, a connecting plate, a blowing and sucking mechanism, a clamping mechanism, an L-shaped block, a concave plate, a prying mechanism and supporting plates, the two supporting plates can firstly support a cargo part which extends out of the tray and is in a drooping state, so that the distance between the cargo part which extends out of the tray and is in the drooping state and the ground is increased; and the two pallet forks can stretch in, so that pallets and goods can be smoothly carried. By means of the supporting mechanism, when the two supporting plates stretch out of the tray and are in a drooping state, a supporting point between each supporting plate and the ground can be provided below each supporting plate, so that the two supporting plates can bear the weight more stably, and the stability is good.

Description

Technical Field

[0001] The present invention relates to the technical field of pallet transport, and in particular to a fully automatic pallet transporter and a method for using the same. Background Art

[0002] A fully automated pallet truck is an automated device used to transport and carry palletized cargo. It is usually equipped with sensors and navigation systems that allow it to drive autonomously, avoid obstacles, and carry cargo within a warehouse or factory according to a preset path.

[0003] The fully automatic pallet truck mainly relies on two forks to transport the pallet and the goods on the pallet. Specifically, the two forks move and extend into the two recesses at the bottom of the pallet. Then the two forks are controlled to move upward to lift the pallet and the goods. Then the vehicle body can move the pallet and the goods in the warehouse and unload them at the designated location.

[0004] However, the size of the goods stacked on some pallets often exceeds the outside of the pallet, and under the influence of the heavy weight of the goods, the part of the goods extending out of the pallet is often in a sagging state, closer to the ground. In order to have better load-bearing capacity, the forks of the fully automatic pallet truck are not only designed to have a certain thickness, but also have front casters hidden inside. The function of the front casters is that when the forks rise to lift the pallet, the front casters will be lowered and in contact with the ground, thereby improving the stability of the forks. In this way, due to its thickness, the forks of the fully automatic pallet truck are difficult to pass through the gap between the part of the goods extending out of the pallet and the ground, making it difficult to smoothly transport the pallet and goods. To this end, we propose a fully automatic pallet truck and a method for using it. Summary of the invention

[0005] The object of the present invention is to provide a fully automatic pallet truck and a method of using the same to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a fully automatic pallet truck, comprising a vehicle body and two forks lifted and arranged on the vehicle body, wherein lifting mechanisms are arranged between the two sides of the two forks which are away from each other and the two side surfaces of the vehicle body; The lifting mechanism includes a fixing frame fixedly connected to the side of the vehicle body, a long cylinder is fixedly connected to the bottom of the fixing frame, a connecting column is slidably inserted into the interior of the long cylinder, a connecting plate is fixedly connected to the front end of the connecting column, and a blowing and suction mechanism is provided between the rear end of the connecting column and the fixing frame, and a clamping mechanism is provided between the connecting column and the long cylinder, two L-shaped blocks are provided between the connecting plate and the fork, and the upper ends of the two L-shaped blocks are commonly fixedly connected to a concave plate, one of the side walls of the L-shaped blocks is fixedly connected to one end of the connecting plate, a supporting plate is installed on the concave plate by a prying mechanism, a splicing plate is fixedly connected between the two L-shaped blocks, and a supporting mechanism is provided outside the splicing plate, the two L-shaped blocks and the concave plate.

[0007] Preferably, the blowing and sucking mechanism includes an air pump and a piston, the air pump is fixedly mounted on the top of the fixed frame, and an air pipe is connected between the air outlet end of the air pump and the rear edge of the outer wall of the long cylinder, the piston is fixedly connected to the rear end of the connecting column, and the outer wall of the piston is in contact with the inner wall of the long cylinder.

[0008] Preferably, a guide block is fixedly connected to the rear edge of the outer wall of the connecting column, and a guide groove is provided on the inner wall of the long tube corresponding to the guide block, and the guide block and the guide groove are slidably matched.

[0009] Preferably, the clamping mechanism includes an L-shaped plate, which is fixedly connected to the front edge of the outer wall of the long cylinder, and an electric push rod 2 is fixedly installed through the horizontal wall of the L-shaped plate. The telescopic shaft end of the electric push rod 2 is fixedly connected to an arc block, and the inner arc surface of the arc block is tightly fitted with the front edge of the outer wall of the connecting column.

[0010] Preferably, the prying mechanism includes a cross bar and an electric push rod, the cross bar is fixedly connected between the two L-shaped blocks, the cross bar is located above the splicing plate, and a connecting ring is rotatably mounted on the middle part of the outer wall of the cross bar, and a seesaw is fixedly connected to the outer wall of the connecting ring, and a rotating mechanism is provided between the seesaw, the concave plate and the support plate, the electric push rod is rotatably installed at the upper edge of the rear end of the concave plate, and the telescopic shaft end of the electric push rod is rotatably connected to the top end of the seesaw.

[0011] Preferably, the rotating mechanism includes two slide grooves, which are respectively opened on the two side walls of the concave plate, and sliders are fitted at the bottom of the two slide grooves, a cross column is fixedly connected between the two sliders, a collar is rotatably mounted on the middle part of the outer wall of the cross column, a splicing block is fixedly connected to the outer wall of the collar, a connecting block is hinged between the end of the splicing block away from the collar and the bottom end of the rocker, the outer wall of the collar is fixedly connected to the rear end of the support plate, and the upper end of the support plate is recessed near the collar.

[0012] Preferably, the supporting mechanism comprises two U-shaped blocks, the two U-shaped blocks are respectively fixedly connected to the two side walls of the concave plate, and the inner walls of the two U-shaped blocks are penetrated by connecting rods for rotation, the lower ends of the two connecting rods are fixedly connected to studs, the outer walls of the two studs are threaded with screw sleeves, the lower ends of the two screw sleeves are fixedly connected to column frames, the two column frames are respectively slidably mounted on the outer walls of the two studs, the lower ends of the two column frames are commonly fixedly connected to a concave rod, and the splicing plate and the two L-shaped blocks are fitted on the inner concave surface of the concave rod.

[0013] Preferably, the supporting mechanism further comprises two rubber columns, which are respectively fixedly connected to the upper ends of the two connecting rods, and the outer walls of the two rubber columns are respectively fitted with L-shaped frames and pads, one end of the L-shaped frame away from the rubber column is fixedly connected to the outer wall of the long tube near the front edge, and the side wall of the pad away from the rubber column is fixedly connected to the side of the fork.

[0014] Preferably, the present invention further discloses a method for using a fully automatic pallet truck, comprising the following steps: S1: First, the vehicle body moves to the vicinity of the pallet, and moves the two forks to correspond to the two notches at the bottom of the pallet, and moves the tips of the two forks to the upper end of the pallet and the goods extending out of the pallet; S2: Then, through the cooperation between the long tube, the connecting column, the connecting plate, the blowing and suction mechanism, the clamping mechanism, the L-shaped block and the concave plate, the two pallets closer to the ground can be moved to the bottom of the cargo part extending out of the pallet; S3: Then, through the cooperation between the prying mechanism and the supporting mechanism, the two pallets can be stably moved upward, and the goods that are protruding out of the pallet, in a drooping state, and close to the ground can be lifted up, so that there is enough clearance between the goods protruding out of the pallet and the ground for the two forks to move in; S4: Finally, the vehicle body moves toward the pallet, thereby driving the two forks to extend into the two recesses at the bottom of the pallet, and causing the two forks to rise to lift the pallet and the goods.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. When the fully automatic pallet truck is transporting a pallet, if the size of the goods stacked on the pallet exceeds the outside of the pallet, and under the influence of the greater dead weight of the goods, the part of the goods extending out of the pallet is still in a drooping state and closer to the ground, at this time, through the cooperation of the fixed frame, long cylinder, connecting column, connecting plate, blowing and suction mechanism, clamping mechanism, L-shaped block, concave plate, prying mechanism and pallet, the two pallets can first lift up the part of the goods extending out of the pallet and in a drooping state, so that the distance between the part of the goods extending out of the pallet and in a drooping state and the ground is increased, and can meet the insertion of two forks, so that smooth handling, transportation and unloading can be carried out.

[0016] 2. By setting up a supporting mechanism, when the two pallets lift up the cargo part that extends out of the pallet and is in a drooping state, a supporting point between the ground and the bottom of each pallet can be provided, so that the two pallets can bear the weight more stably and have good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A magnified view of the structure at center; Figure 3 It is a display diagram of the lifting mechanism of the present invention and a cross-sectional view of the long tube; Figure 4 For the present invention Figure 3 A magnified view of the structure at B in the middle; Figure 5 It is a local structure display diagram of the concave plate of the present invention; Figure 6 For the present invention Figure 5 A magnified view of the structure at C in the middle; Figure 7 Another perspective local structure display diagram of the concave plate of the present invention; Figure 8 It is a cross-sectional view of the long tube and the L-shaped plate of the present invention.

[0018] In the attached drawings, the list of parts represented by each reference numeral is as follows: 1. air pipe; 2. long cylinder; 3. air pump; 4. fixed frame; 5. fork; 6. vehicle body; 7. L-shaped frame; 8. rocker; 9. electric push rod one; 10. L-shaped plate; 11. concave plate; 12. slide groove; 13. cushion block; 14. arc block; 15. support plate; 16. concave rod; 17. L-shaped block; 18. connecting plate; 19. connecting column; 20. electric push rod two; 21. guide block; 22. guide groove; 23. piston; 24. cross column; 25. cross bar; 26. connecting ring; 27. collar; 28. connecting rod; 29. ​​rubber column; 30. slider; 31. column frame; 32. screw sleeve; 33. stud; 34. U-shaped block; 35. splicing block; 36. connecting block; 37. splicing plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figure 1 - Figure 8 A fully automatic pallet truck comprises a vehicle body 6 and two forks 5 which are lifted and lowered on the vehicle body 6, wherein lifting mechanisms are respectively arranged between the two sides of the two forks 5 which are away from each other and the two sides of the vehicle body 6; The lifting mechanism includes a fixing frame 4 fixedly connected to the side of the vehicle body 6, a long cylinder 2 is fixedly connected to the bottom of the fixing frame 4, a connecting column 19 is slidably inserted into the interior of the long cylinder 2, a connecting plate 18 is fixedly connected to the front end of the connecting column 19, and a blowing and suction mechanism is provided between the rear end of the connecting column 19 and the fixing frame 4, and a clamping mechanism is provided between the connecting column 19 and the long cylinder 2, two L-shaped blocks 17 are provided between the connecting plate 18 and the fork 5, and the upper ends of the two L-shaped blocks 17 are fixedly connected to a concave plate 11, wherein the side wall of one L-shaped block 17 is fixedly connected to one end of the connecting plate 18, a supporting plate 15 is installed on the concave plate 11 through a prying mechanism, a splicing plate 37 is fixedly connected between the two L-shaped blocks 17, and a supporting mechanism is provided outside the splicing plate 37, the two L-shaped blocks 17 and the concave plate 11.

[0021] The blowing and suction mechanism includes an air pump 3 and a piston 23. The air pump 3 is fixedly installed on the top of the fixed frame 4, and an air pipe 1 is connected between the air outlet end of the air pump 3 and the rear edge of the outer wall of the long tube 2. The piston 23 is fixedly connected to the rear end of the connecting column 19, and the outer wall of the piston 23 is in contact with the inner wall of the long tube 2.

[0022] A guide block 21 is fixedly connected to the rear edge of the outer wall of the connecting column 19 , and a guide groove 22 is formed on the inner wall of the long tube 2 corresponding to the guide block 21 , and the guide block 21 and the guide groove 22 are slidably matched.

[0023] Specifically, when the air pump 3 is started to blow air, the air flow can be transported to the inside of the long tube 2 along the air pipe 1. Under the driving effect of the air pressure, the piston 23 can be pushed to slide forward inside the long tube 2, and the piston 23 can drive the connecting column 19 to slide forward inside the long tube 2, and the connecting column 19 can drive the guide block 21 to slide forward in the guide groove 22 inside the long tube 2. On the contrary, when the air pump 3 is evacuated, the piston 23, the connecting column 19 and the guide block 21 will slide backward.

[0024] The clamping mechanism includes an L-shaped plate 10, which is fixedly connected to the front edge of the outer wall of the long tube 2. An electric push rod 20 is fixedly installed through the horizontal wall of the L-shaped plate 10. The telescopic shaft end of the electric push rod 20 is fixedly connected to an arc block 14. The inner arc surface of the arc block 14 is tightly fitted with the front edge of the outer wall of the connecting column 19.

[0025] The prying mechanism includes a cross bar 25 and an electric push rod 9. The cross bar 25 is fixedly connected between the two L-shaped blocks 17. The cross bar 25 is located above the splicing plate 37, and a connecting ring 26 is rotatably mounted on the middle part of the outer wall of the cross bar 25. The outer wall of the connecting ring 26 is fixedly connected with a seesaw 8. A rotating mechanism is provided between the seesaw 8, the concave plate 11 and the support plate 15. The electric push rod 9 is rotatably installed at the upper edge of the rear end of the concave plate 11, and the telescopic shaft end of the electric push rod 9 is rotatably connected to the top end of the seesaw 8.

[0026] The rotating mechanism includes two slide grooves 12, which are respectively opened on the two side walls of the concave plate 11, and the bottoms of the two slide grooves 12 are fitted with sliders 30, a cross column 24 is fixedly connected between the two sliders 30, a collar 27 is rotatably sleeved on the middle part of the outer wall of the cross column 24, a splicing block 35 is fixedly connected to the outer wall of the collar 27, a connecting block 36 is hinged between the end of the splicing block 35 away from the collar 27 and the bottom end of the rocker 8, the outer wall of the collar 27 is fixedly connected to the rear end of the support plate 15, and the upper end of the support plate 15 is notched near the collar 27.

[0027] In this embodiment, when the pallet is being transported automatically, if the size of the goods stacked on the pallet exceeds the outside of the pallet, and under the influence of the heavy deadweight of the goods, the part of the goods extending out of the pallet is still in a drooping state and closer to the ground, the vehicle body 6 is first moved to the vicinity of the pallet, and the two forks 5 are moved to correspond to the two notches at the bottom of the pallet respectively (it should be noted that the two notches at the bottom of the pallet are well-known prior art and are not described in detail), and the tips of the two forks 5 are moved to the goods extending out of the pallet near the upper end of the pallet, and then the two electric push rods 20 are started, and the two electric push rods 20 can drive the arcs connected to them to move. The L-shaped blocks 14 move upward and leave their corresponding connecting columns 19, and then blow air into the two long cylinders 2 through the blowing and suction mechanism, which can drive the two connecting columns 19 to slide forward in their corresponding long cylinders 2, that is, in the direction of the goods. Each connecting column 19 will drive the connected connecting plate 18, two L-shaped blocks 17, concave plate 11, support plate 15 and splicing plate 37 and other connected parts to move forward together. It should be noted that the support plate 15 is not only close to the ground but also thinner than the fork 5. The distance between the part of the goods extending out of the pallet and in a drooping state and the ground can meet the extension of the two forward-moving support plates 15.

[0028] After the two support plates 15 extend into the narrow gap, the two electric push rods 9 are then started, and the telescopic shafts of the two electric push rods 9 are extended, and the tops of the respective connected seesaw plates 8 are driven to rotate downward, and each seesaw plate 8 drives the respective connected connecting ring 26 to rotate outside the corresponding cross bar 25, and the bottom of each seesaw plate 8 drives the corresponding connected splicing block 35 and the sleeve ring 27 to move upward through the connecting block 36, and each sleeve ring 27 drives the respective connected cross column 24 to slide upward in the corresponding concave plate 11, and at the same time, each sleeve The rings 27 will rotate outside the corresponding cross column 24, and the sliders 30 at both ends of each cross column 24 will slide upward in the corresponding slide groove 12 respectively, and the two cross columns 24 will drive the respectively connected pallets 15 to move upward, so that the two pallets 15 can lift up the cargo part extending out of the pallet and in a drooping state, so that the distance between the cargo part extending out of the pallet and in a drooping state and the ground is increased, and the two forks 5 can be extended. At the same time, the two pallets 15 can be kept in a fixed state through the supporting mechanism.

[0029] Then the vehicle body 6 drives the two forks 5 to move forward. At this time, the positions of the two support plates 15 remain fixed, and the vehicle body 6 drives the two long cylinders 2 to slide forward outside the two connecting columns 19 respectively (it should be noted that when the long cylinder 2 slides forward outside the connecting column 19, the air in the long cylinder 2 will be squeezed out, and the air in the long cylinder 2 will be sucked out by the blowing and sucking mechanism at this time. At this time, the air squeezed out of the long cylinder 2 is also sucked away by the blowing and sucking mechanism). Each long cylinder 2 will drive the L-shaped plate 10, the electric push rod 20 and the arc block connected to each other. 14 moves together until the two forks 5 extend into the two notches at the bottom of the pallet respectively, and at this time the vehicle body 6 is close to the goods extending out of the pallet and behind the two concave plates 11, and then the two electric push rods 20 are started first, and the two electric push rods 20 can drive the arc blocks 14 connected to them to move down and press against the corresponding connecting columns 19, so as to fix the two connecting columns 19, and finally drive the two forks 5 to move up to lift the pallet and the goods, so as to facilitate transportation and unloading, and finally the state of each component can be restored to the state as shown in the figure according to the opposite principle. Figure 1 The state shown is to facilitate the smooth handling of the next cargo extending out of the pallet.

[0030] It is worth mentioning that the thickness of the two forks 5 can still be maintained at a certain thickness to ensure the load-bearing capacity, and there can still be enough space inside to install hidden front casters.

[0031] Example 2: Please refer to Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 The present embodiment further explains the first embodiment, the supporting mechanism includes two U-shaped blocks 34, the two U-shaped blocks 34 are respectively fixedly connected to the two side walls of the concave plate 11, and the inner walls of the two U-shaped blocks 34 are penetrated with connecting rods 28 for rotation, the lower ends of the two connecting rods 28 are fixedly connected with studs 33, the outer walls of the two studs 33 are threaded with screw sleeves 32, the lower ends of the two screw sleeves 32 are fixedly connected with column frames 31, the two column frames 31 are respectively slidably sleeved on the outer walls of the two studs 33, the lower ends of the two column frames 31 are commonly fixedly connected with the concave rod 16, and the splicing plate 37 and the two L-shaped blocks 17 are attached to the inner concave surface of the concave rod 16.

[0032] The supporting mechanism also includes two rubber columns 29, which are respectively fixedly connected to the upper ends of the two connecting rods 28, and the outer walls of the two rubber columns 29 are respectively fitted with an L-shaped frame 7 and a cushion block 13, one end of the L-shaped frame 7 away from the rubber column 29 is fixedly connected to the outer wall of the long tube 2 near the front edge, and the side wall of the cushion block 13 away from the rubber column 29 is fixedly connected to the side of the fork 5.

[0033] In this embodiment, when the two concave plates 11 are driven to move forward, each concave plate 11 will drive the two U-shaped blocks 34, two connecting rods 28, two studs 33, two screw sleeves 32, two column frames 31, two rubber columns 29 and a concave rod 16 connected to each other to move together, and the two rubber columns 29 will also rotate on the outer wall of the L-shaped frame 7 and the cushion block 13 respectively when moving forward (the rotation is mainly caused by the friction between the rubber column 29 and the L-shaped frame 7 and the cushion block 13), each rubber column 29 will drive the connecting rod 28 to rotate in the corresponding U-shaped block 34, and the two connecting rods 28 can drive the studs 33 connected to each other to rotate, one clockwise and the other counterclockwise, and the external threads of the two studs 33 Symmetrically, the screw sleeves 32 threaded on the outer walls of the two studs 33 will move downward, and will drive the respectively connected column frames 31 to move downward, and the two column frames 31 can drive the concave rod 16 to move downward until its bottom end contacts the ground. At this time, since the concave rod 16 can no longer move downward, the two rubber columns 29 will stop rotating, and one rubber column 29 will keep sliding tightly with the L-shaped frame 7, and the other will keep sliding tightly with the cushion block 13 until the two rubber columns 29 leave the L-shaped frame 7 and the cushion block 13 respectively, and then the concave rod 16 will slide forward on the ground until the support plate 15 connected to the concave plate 11 extends between the cargo part extending out of the pallet and in a drooping state and the ground.

[0034] It should be noted that when the pallet 15 lifts up the cargo portion that extends out of the pallet and is in a drooping state, since the two concave plates 11 are respectively close to the two pallets 15 and are respectively under the two pallets 15, and are in contact with the ground, a good support point can be formed, so that the two pallets 15 can bear the weight more stably and have good stability. Under the friction between the pallet 15 and the cargo and the friction between the concave plates 11 and the ground, the two pallets 15 and the two concave plates 11 will maintain a certain fixed state.

[0035] It should also be noted that when the vehicle body 6 drives the two forks 5 to extend into the two recesses at the bottom of the pallet, it will also drive the L-shaped frame 7 and the cushion block 13 to move together, and finally the L-shaped frame 7 and the cushion block 13 will move close to the two rubber columns 29 respectively without contact. When the goods are lifted, the long tube 2 is sucked by the blowing and suction mechanism, and the connecting column 19 can be driven to slide backward in the long tube 2 under the action of negative pressure, which will drive the two rubber columns 29 to be squeezed and closely contacted with the L-shaped frame 7 and the cushion block 13 respectively, and the two rubber columns 29 will rotate in the opposite direction of the previous rotation, which will drive the two connecting rods 28 and the two studs 33 to rotate in the opposite direction of the previous rotation, and then the concave plate 11 will move upward and be stored to avoid unnecessary friction loss caused by long-term contact with the ground.

[0036] It should also be noted that although the fork 5 will drive the cushion block 13 to move upward and away from the rubber column 29, the fork 5 can also drive the cushion block 13 to move downward, and the cushion block 13 that moves downward will be squeezed and in close contact with the rubber column 29 to a certain extent.

[0037] Example 3: Please refer to Figure 1 - Figure 8 The present invention also discloses a method for using a fully automatic pallet truck, comprising the following steps: S1: First, the vehicle body 6 moves to the vicinity of the pallet, and moves the two forks 5 to correspond to the two notches at the bottom of the pallet, and moves the tips of the two forks 5 to the goods extending out of the pallet near the upper end of the pallet; S2: Then, through the cooperation among the long tube 2, the connecting column 19, the connecting plate 18, the blowing and suction mechanism, the clamping mechanism, the L-shaped block 17 and the concave plate 11, the two pallets 15 closer to the ground can be moved to the bottom of the cargo part extending out of the pallet; S3: Then, through the cooperation between the prying mechanism and the supporting mechanism, the two pallets 15 can be stably moved upward, and the goods that are protruding out of the pallet, in a drooping state, and close to the ground can be lifted up, so that there is enough clearance between the goods protruding out of the pallet and the ground for the two forks 5 to move in; S4: Finally, the vehicle body 6 moves toward the pallet, thereby driving the two forks 5 to extend into the two recesses at the bottom of the pallet, and causing the two forks 5 to rise to lift the pallet and the goods.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic pallet truck, comprising a vehicle body (6) and two forks (5) arranged on the vehicle body (6) for lifting, characterized in that: A lifting mechanism is provided between the side surfaces of the two forks (5) that are away from each other and the two side surfaces of the vehicle body (6); The lifting mechanism comprises a fixing frame (4) fixedly connected to the side of the vehicle body (6), a long tube (2) fixedly connected to the bottom of the fixing frame (4), a connecting column (19) slidably inserted into the interior of the long tube (2), a connecting plate (18) fixedly connected to the front end of the connecting column (19), a blowing and suction mechanism is provided between the rear end of the connecting column (19) and the fixing frame (4), a clamping mechanism is provided between the connecting column (19) and the long tube (2), and a clamping mechanism is provided between the connecting plate (18) and the fork (5). Two L-shaped blocks (17) are provided, the upper ends of the two L-shaped blocks (17) are fixedly connected to a concave plate (11), the side wall of one of the L-shaped blocks (17) is fixedly connected to one end of a connecting plate (18), a support plate (15) is mounted on the concave plate (11) via a prying mechanism, a splicing plate (37) is fixedly connected between the two L-shaped blocks (17), and a supporting mechanism is provided outside the splicing plate (37), the two L-shaped blocks (17) and the concave plate (11).

2. The fully automatic pallet truck according to claim 1, characterized in that: The blowing and suction mechanism comprises an air pump (3) and a piston (23); the air pump (3) is fixedly mounted on the top of a fixing frame (4); an air pipe (1) is connected between an air outlet end of the air pump (3) and a rear edge of an outer wall of the long tube (2); the piston (23) is fixedly connected to a rear end of a connecting column (19), and an outer wall of the piston (23) is in contact with an inner wall of the long tube (2).

3. The fully automatic pallet truck according to claim 1, characterized in that: A guide block (21) is fixedly connected to the rear edge of the outer wall of the connecting column (19), and a guide groove (22) is provided on the inner wall of the long tube (2) corresponding to the guide block (21), and the guide block (21) and the guide groove (22) are slidably matched.

4. The fully automatic pallet truck according to claim 1, characterized in that: The clamping mechanism comprises an L-shaped plate (10), wherein the L-shaped plate (10) is fixedly connected to the front edge of the outer wall of the long tube (2), and a second electric push rod (20) is fixedly installed through the horizontal wall of the L-shaped plate (10), and the telescopic shaft end of the second electric push rod (20) is fixedly connected to an arc block (14), and the inner arc surface of the arc block (14) is tightly fitted with the front edge of the outer wall of the connecting column (19).

5. The fully automatic pallet truck according to claim 1, characterized in that: The prying mechanism comprises a cross bar (25) and an electric push rod (9), wherein the cross bar (25) is fixedly connected between two L-shaped blocks (17), the cross bar (25) is located above the splicing plate (37), and a connecting ring (26) is rotatably mounted on the middle part of the outer wall of the cross bar (25), and a seesaw (8) is fixedly connected to the outer wall of the connecting ring (26), and a rotating mechanism is provided between the seesaw (8), the concave plate (11) and the support plate (15), and the electric push rod (9) is rotatably mounted at the upper edge of the rear end of the concave plate (11), and the telescopic shaft end of the electric push rod (9) is rotatably connected to the top end of the seesaw (8).

6. The fully automatic pallet truck according to claim 5, characterized in that: The rotating mechanism comprises two slide grooves (12), the two slide grooves (12) are respectively arranged on the two side walls of the concave plate (11), and the bottoms of the two slide grooves (12) are both fitted with sliders (30), a cross column (24) is fixedly connected between the two sliders (30), a collar (27) is rotatably sleeved on the middle part of the outer wall of the cross column (24), a splicing block (35) is fixedly connected to the outer wall of the collar (27), a connecting block (36) is hingedly connected between one end of the splicing block (35) away from the collar (27) and the bottom end of the seesaw (8), the outer wall of the collar (27) is fixedly connected to the rear end of the support plate (15), and the upper end of the support plate (15) is arranged with a notch near the collar (27).

7. The fully automatic pallet truck according to claim 1, characterized in that: The support mechanism comprises two U-shaped blocks (34), the two U-shaped blocks (34) are respectively fixedly connected to the two side walls of the concave plate (11), and the inner walls of the two U-shaped blocks (34) are penetrated by connecting rods (28) for rotational installation, the lower ends of the two connecting rods (28) are fixedly connected to studs (33), the outer walls of the two studs (33) are threadedly sleeved with screw sleeves (32), the lower ends of the two screw sleeves (32) are fixedly connected to column frames (31), the two column frames (31) are respectively slidably sleeved on the outer walls of the two studs (33), the lower ends of the two column frames (31) are commonly fixedly connected to the concave rod (16), and the splicing plate (37) and the two L-shaped blocks (17) are fitted on the inner concave surface of the concave rod (16).

8. The fully automatic pallet truck according to claim 7, characterized in that: The support mechanism further comprises two rubber columns (29), the two rubber columns (29) being fixedly connected to the upper ends of the two connecting rods (28) respectively, and the outer walls of the two rubber columns (29) are respectively fitted with an L-shaped frame (7) and a cushion block (13), one end of the L-shaped frame (7) away from the rubber column (29) being fixedly connected to the outer wall of the long tube (2) near the front edge, and the side wall of the cushion block (13) away from the rubber column (29) being fixedly connected to the side surface of the fork (5).

9. A method for using a fully automatic pallet truck, comprising the fully automatic pallet truck according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: First, the vehicle body (6) moves to the vicinity of the pallet, and moves the two forks (5) to correspond to the two notches at the bottom of the pallet respectively, and moves the tips of the two forks (5) to the goods protruding from the upper end of the pallet; S2: Then, through the cooperation among the long tube (2), the connecting column (19), the connecting plate (18), the blowing and suction mechanism, the clamping mechanism, the L-shaped block (17) and the concave plate (11), the two pallets (15) closer to the ground can be moved to below the cargo portion extending out of the pallet; S3: Then, through the cooperation between the prying mechanism and the supporting mechanism, the two pallets (15) can be stably moved upward, and the goods that are protruding from the upper end of the pallet outside the pallet, in a drooping state, and close to the ground can be lifted up, so that there is enough clearance between the goods protruding from the pallet and the ground for the two forks (5) to move in; S4: Finally, the vehicle body (6) moves toward the pallet, thereby driving the two forks (5) to extend into the two recesses at the bottom of the pallet, and causing the two forks (5) to rise to lift the pallet and the goods.

Images